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hoa [83]
3 years ago
7

Which expressions can have the value of 9/20

Mathematics
1 answer:
wariber [46]3 years ago
6 0

Answer:

9 DIVIDED BY 20 THAT IS BASICALLY AN EXPRESSION!

Step-by-step explanation:

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A 97% confidence interval for the mean of a population is to be constructed and must be accurate to within 0.3 unit. A prelimina
ivann1987 [24]

Answer:

The sample size will be "102.5494 \sim 102". A further explanation is given below.

Step-by-step explanation:

Let the sample size will be:

= n

The given values are:

Standard deviation,

= 1.4

ME,

= 0.3

As we know,

⇒ n=(Z \frac{a}{2}\times \frac{SD}{E})^2

On putting the estimated values, we get

⇒    =(2.17\times \frac{1.4}{0 .3})^2

⇒    =(\frac{3.038}{0.3})^2

⇒    =102.5494 \sim 102

4 0
3 years ago
Margit works in a factory. She receives a salary of $12 per hour and piecework pay of 12 cents per unit produced. Last week she
lilavasa [31]

Answer:

d is 456

a is 90.60

b is 14.38

4 0
2 years ago
How to subtract fractions
frosja888 [35]
You need to first make denominator in the fractions you have equal, then simply subtract numenators.

example:
2/3 - 1/2
first step is to make denominators equal.
for this example, the denominator will be equal to 6 which is 2x3
so, 2/3 = 4/6 and 1/2 = 3/6
so, the expression now becomes:
4/6 - 3/6
simply subtract numenators and the denominator will be 6 as well.
4/6 - 3/6 = 1/6

another example:
3/4 - 1/2
here the denominator can be equal to 4 in all terms
1/2 = 2/4
so, the new expression is now:
3/4 - 2/4 = 1/4
5 0
3 years ago
PLEASE HELPPPPPP ME
seraphim [82]

Answer:

True

Step-by-step explanation:

Do the working for it and youll find the answer

1 + cosa

\pi

5 0
3 years ago
Is 6 classified as an integer?​
cupoosta [38]

Answer:

Yes

Step-by-step explanation:

An integer is any whole number.

If this helped I would appreciate it if you marked me Brainliest. thank you and have a nice day!

7 0
3 years ago
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